seamans



(Model) I. MJS-BAMANS. I-Iydrooarbon Burne'r'for Crucible Furnaces.

No. 228.281. Patented June1 ,18 80.

I ran enter.

NJEI'EHS.PN01QUTHOGRAPNER,WASHIN Irving .Mfleamoms UNrrn States ATENT Fries.

IRVING M. SEAMANS, OF BUFFALO, NEW YORK, ASSIGNOB TO BUFFALO DENTAL MANUFACTURING COMPANY, OF SAME PLACE.

HYDROCARBON-BURNER FOR CRUClBLE-FURNACES.

SPECIFICATION forming part of Letters Patent No. 228,281, dated June 1, 1880.

Application filed March 2, 1880. (Model) To all whom it may concern Be it known that I, IRVING M. SEAMANs, a citizen of the United States, residing at Buffalo, in the county of Eric and State of New York, have invented new and useful Improvements in Hydrocarbon-Burners for Crucible- Furnaces, of which the following is a specification.

My invention relates to that class of burners for crucible-furnaces in which liquid petroleum or other hydrocarbon liquid is delivered in the form of spray for combustion, the liquid hydrocarbon being atomized or separated into extremely small particles by an airblast from a blower.

It consists, first, in the combination of an oil-reservoir with a vertically-adjustable oilsupply tube leading into a conducting-pipe, and adapted by means of its adjustment to regulate the supply ofoil to be atomized 5 second,in the combination of an oil-reservoir with a vertically-adjustable oil-supply tube leading from the reservoir into a conducting-pipe, a thumb-nut arranged upon a screw-threaded portion of the oil-supply pipe above the reservoir, and means for preventing the rotation of the oil-supply pipe as it is raised or lowered by rotating the thumb-nut, all constructed and arranged to effectively regulate the supply of oil to said conducting-tube.

In the drawings, Figure l is a perspective view, representing the reservoir and burner mounted upon a metal base in proximity to a crucible-furnace. Fig. 2 is a section taken on a vertical plane centrally through the burner and reservoir and Fig. Sis a view of the oilconducting tube detached, showing its enlarged squared portions or collars.

The letter A designates the oil-reservoir, which consists of a cylindrical casing closed at each end and adapted to be fitted upon the metal base a, which supports an adjacent crucible-furnace, A.

Extending horizontally across the top of the oil-reservoir is a pipe, B, which is connected at one end with a flexible tubing leading to the bellows or blower, and screwthreaded exteriorly at its remaining end for engagement with an internally screw-threaded portion, b, of the adjustable sleeve or nozzle C, employed for regulating an annular jet of air, which is directed between the inner wall of the tube B and an inclosed tube, D. This said tube D is considerably less in length than the larger surrounding tube, and is properly centered within the same by enlarged portions or collars E, which have a rectangular conformation in cross-section, in order that, while they fit within the tube B for the purposejust mentioned, air-passages will be left between the collars and the tube within which they are fitted.

The inner tube, D, is slightly contracted at its nozzle end, as at D, and at its remaining end, which is enlarged to form one of the rectangular-shaped collars, E, it has a flaring or conical -shaped mouth, 6, to receive the air which is driven into the tube B by the blower. It will be observed that one of the faces of this enlarged end of the inner tube is not flat like the remaining faces thereof, but is rounded, as at 0, so as to conform to the shape of the inclosing tube. A hole, F, is made through this rounded face 6, and through this hole is passed the tube which conducts the oil up from the reservoir.

The outer tube, B, is provided with a hole, Gr, corresponding to the hole in the inner tube, the location of the said aperture in the outer tube being, by preference, about midway of its ends.

The tube B is held in place upon the reser-- voir by straps H H, the base-plates H of which are secured to thereservoir by means of screws, thus admitting of the detachment of the straps from the reservoir when it becomes necessary to disconnect the parts for the purpose of cleaning the same in case there should be any obstruction to the proper working of the burner.

The oil is introduced by the air-blast from the reservoir up through a vertical tube, I, into the tube D, where it is commingled with a portion of the air-blast which enters the rear open end of tube D. This oil-supply tube I passes up through the top of the reservoir and into the tube D through the openings G and G, whicl are formed, respectively, in the inner and outer tubes, and it is fitted in bearings, so as to be capable of a vertical movement.

The position of the upper end of the oil-supply tube within the tube D determines the quantity of oil supplied to said tube D, and when it is raised to a sufficient height for its upper end to come in contact with the tube D the flow of oil will of course be checked. The device for raising or lowering this oil-supply tube, so as to regulate the supply of oil, consists of a milled tlllllllbllllt, K, which is fitted upon a screw-threaded portion of the said tube,

just above the reservoir. By rotating the thumb-nut the tube will be moved vertically, its rotation being guarded against by a feather, L, which works in a slotted bearing-block, Z, secured to the under side of the top of the reservoir. The reservoir will be provided with a suitable cap or stopper, M, forclosin g the opening through which it is supplied with oil, and this cap will have an air-hole, through which air is supplied to the reservoir.

The discharge end of the adjustable sleeve or nozzle G is somewhat contracted, so that when it (the said nozzle) is turned back upon the pipe B to a certain limit its contracted end will fit closely around the outer projecting end of the tube D, which will cut 0d" the annular air-jet which issues out between the inner tube, D, and the outer pipe, B. By now turning the nozzle so as to throw it forward the annular outlet for the jet will be opened, and its area may be varied so as to regulate the supply of oxygen to the flame by such adjustment of the sleeve. The oil is ejected in the form of spray from the pipe D, and will readily burn.

To remove the burnerfrom the reservoir the straps can be disconnected from the reservoir, the oil-tube which is operated by the milled nut withdrawn from its bearings, the sleeve 0 unscrewed, and the tube D withdrawn from the tube B, thus admitting of access to all parts of the burner for the purpose of cleansing the same.

Having thus described my invention, what I claim is-- 1. The combination of an oil-reservoir, A, for a hydrocarbon -burner with a verticallya'djustable oil-supply tube, I, extending from said reservoir, a horizontal conductin g-tube, D, into which extends the upper end of the oilsupply tube, and a pipe, B, for causing a current of air to pass through said conductingtube, substantially as and for the purposes set forth.

2. The combination of an oil-reservoir, A, for a petroleum-burner with a vertically-adjustableoil-supply tube, I, leading from the reservoir into a horizontal conducting-tube, D, a thumb-nut arranged upon a screw-threaded portion of the oil-supply pipe above the said reservoir, and means for preventing the rotation of the oil-supply pipe as it is raised or lowered by rotating the thumb-nut, all constructed and arranged to regulate the supply of oil to the conducting-tube, substantially as set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

, IRVING M. SEAMAN S.

Witnesses:

WILLIAM GRAM, J r.,

CHARLES ROTHER. 

